13530869 has 16 divisors (see below), whose sum is σ = 15716160. Its totient is φ = 11520000.

The previous prime is 13530857. The next prime is 13530871. The reversal of 13530869 is 96803531.

It is a cyclic number.

It is not a de Polignac number, because 13530869 - 2²⁰ = 12482293 is a prime.

It is a super-2 number, since 2×13530869² = 366168831790322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20789 + ... + 21429.

It is an arithmetic number, because the mean of its divisors is an integer number (982260).

Almost surely, 2^13530869 is an apocalyptic number.

13530869 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13530869 is a deficient number, since it is larger than the sum of its proper divisors (2185291).

13530869 is a wasteful number, since it uses less digits than its factorization.

13530869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 13530869 is about 3678.4329543978. The cubic root of 13530869 is about 238.2915066161.

The spelling of 13530869 in words is "thirteen million, five hundred thirty thousand, eight hundred sixty-nine".